Overnight, still have a slow leak. New 5/16" fuel hose, with 2 clips on the delivery hose , done up as tight as I can manage, straight run at the screw head. Input line is bundy tube coming over the bellhousing from the reserve switch, runs along the block, bent up at 45d near the engine mount, then bent horizontal again to face the pump connection. The original end seems to have been cut off when a foreign pump was fitted. The two ends dont quite line up vertically, and the original rubber piece had a bend in it. When the bundy is free of a clip on the side of the block the connection over the other side seems very floppy, so I guess its a plastic hose over there. It takes a minute or more to produce a drip, so its slow but not acceptable. The hose is a good fit - not easily pushed over the bundy, needs persuasion. Have wiped a dry finger under the pump inlet connection(which is higher than the other connection), comes away dry. My only thought now is that there is a crack in the bundy....has anybody seen that happen? Need to cut some more off, at least making the connection easier to access? The original rubber bit looked like it was leaking at the input connection, and it looked pretty tired. Its clip was pretty tight, took a while to get it loose due to poor access. The reserve switch is pretty much inaccessible with the engine in place, IMHO.